2 my-lily-lexer.cc -- implement My_lily_lexer
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "lily-proto.hh"
13 #include "scm-hash.hh"
14 #include "interval.hh"
15 #include "input-file-results.hh"
16 #include "lily-guile.hh"
19 #include "my-lily-lexer.hh"
21 #include "source-file.hh"
25 #include "ly-modules.hh"
28 static Keyword_ent the_key_tab
[]={
31 {"applycontext", APPLYCONTEXT
},
32 {"applyoutput", APPLYOUTPUT
},
33 {"autochange", AUTOCHANGE
},
34 {"simultaneous", SIMULTANEOUS
},
35 {"sequential", SEQUENTIAL
},
37 {"alternative", ALTERNATIVE
},
40 {"chordmodifiers", CHORDMODIFIERS
},
43 {"consists", CONSISTS
},
44 {"consistsend", CONSISTSEND
},
48 {"description", DESCRIPTION
},
49 {"duration", DURATION
},
50 {"grobdescriptions", GROBDESCRIPTIONS
},
64 {"pitchnames", PITCHNAMES
},
66 {"outputproperty", OUTPUTPROPERTY
},
67 {"override", OVERRIDE
},
73 {"property", PROPERTY
},
74 {"relative", RELATIVE
},
77 {"addlyrics", ADDLYRICS
},
78 {"partcombine", PARTCOMBINE
},
82 {"translator", TRANSLATOR
},
83 {"transpose", TRANSPOSE
},
90 My_lily_lexer::My_lily_lexer ()
92 keytable_
= new Keyword_table (the_key_tab
);
95 add_scope(ly_make_anonymous_module());
98 main_input_b_
= false;
102 My_lily_lexer::add_scope (SCM module
)
104 ly_reexport_module (scm_current_module());
105 scm_set_current_module (module
);
106 for (SCM s
= scopes_
; gh_pair_p (s
); s
= gh_cdr (s
))
109 UGH. how to do this more neatly?
111 SCM expr
= scm_list_n (ly_symbol2scm ("module-use!"),
112 module
, scm_list_n (ly_symbol2scm ("module-public-interface"),
113 gh_car (s
), SCM_UNDEFINED
),
116 scm_primitive_eval(expr
);
119 scopes_
= scm_cons (module
, scopes_
);
123 My_lily_lexer::remove_scope ()
125 SCM sc
= gh_car (scopes_
);
126 scopes_
= gh_cdr (scopes_
);
127 scm_set_current_module (gh_car (scopes_
));
134 My_lily_lexer::lookup_keyword (String s
)
136 return keytable_
->lookup (s
.to_str0 ());
140 My_lily_lexer::lookup_identifier (String s
)
142 SCM sym
= ly_symbol2scm (s
.to_str0());
143 for (SCM s
= scopes_
; gh_pair_p (s
); s
= gh_cdr (s
))
145 SCM var
= ly_module_lookup (gh_car (s
), sym
);
146 if (var
!= SCM_BOOL_F
)
147 return scm_variable_ref(var
);
150 return SCM_UNSPECIFIED
;
154 My_lily_lexer::start_main_input ()
156 new_input (main_input_string_
, &global_input_file
->sources_
);
157 allow_includes_b_
= allow_includes_b_
&& ! (safe_global_b
);
161 My_lily_lexer::set_identifier (SCM name
, SCM s
)
163 assert (gh_string_p (name
));
165 if (lookup_keyword (ly_scm2string (name
)) >= 0)
168 char * str
= gh_scm2newstr (name
, &sz
) ;
169 warning (_f ("Identifier name is a keyword: `%s'", str
));
173 SCM sym
= scm_string_to_symbol (name
);
174 SCM mod
= gh_car (scopes_
);
176 scm_module_define (mod
, sym
, s
);
179 My_lily_lexer::~My_lily_lexer ()
187 My_lily_lexer::LexerError (char const *s
)
189 if (include_stack_
.empty ())
191 progress_indication (_f ("error at EOF: %s", s
)+ String ("\n"));
196 Input
spot (get_source_file (), here_str0 ());
202 My_lily_lexer::escaped_char (char c
) const
220 My_lily_lexer::here_input () const
222 Source_file
* f
= get_source_file ();
223 return Input (f
, (char*)here_str0 ());
227 My_lily_lexer::prepare_for_next_token ()
229 last_input_
= here_input();
234 My_lily_lexer::scan_markup_word (String s
)
237 TODO: better implementation:
239 - make a table of markup functions, for quicker lookup
244 SCM s
= scm_c_eval_str ((s
+ "-markup").to_str0());